Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
CLIMATRONIC Control Module -J255-: Notes
Special tools and workshop equipment required
- Hook3438
Removing
-- Check coding and adaptation of the Climatronic control module using the "Replace control module" function in Guided Fault Finding (if the Climatronic control module is to be replaced). VAS5051B in the "Guided Fault Finding" function.
-- Switch off ignition.
-- Place 3438 -B- on Climatronic control module -A- according to illustration (left and right).
-- Carefully pull Climatronic control module in -direction of arrow- out of center console.
- To prevent damage to the Climatronic control module and center console, do not pull too hard.
- The Climatronic control module is held by the clips and brackets in the center console. If clips are stuck, they must be loosened from behind with a screwdriver. Refer to Climatronic control module -J255- stuck in center console, removing .
- Do not damage surface of center console when removing (cover it if necessary).
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.